OBJECTIVES: To compare a widely used Australian food-frequency questionnaire (FFQ) with diet records and consider the results in relation to its use in nutrition surveillance. DESIGN: Inter-method reliability study. SETTING: A randomised trial in subjects with past asbestos exposure. SUBJECTS: Seventy-two adults living in Western Australia. METHODS: A semi-quantitative FFQ ...

OBJECTIVE: To evaluate a two-page food frequency list for use as a Dietary Targets Monitor in large scale surveys to quantify consumptions of the key foods groups targeted in health promotion. DESIGN: Intakes of fruit and vegetables, starchy foods and fish estimated from a validated food frequency questionnaire (FFQ) were ...

OBJECTIVE: To develop a food frequency questionnaire for adolescents (AFFQ) and demonstrate its relative validity. DESIGN: The final version of the AFFQ was composed of 76 food items previously identified according to their contribution in nutrients and overall importance within the eating habits of this population group. The validation study, ...

The food neophobia scale [FNS; Appetite 19 (1992) 105] has been used to assess willingness to try new foods in studies conducted around the world. Although it is tempting to compare FNS scores across these studies, appropriate psychometric analyses are required to validate the scale and allow cross-cultural comparisons. These ...

OBJECTIVES: To examine the validity and reproducibility of a self-administered food-frequency questionnaire (FFQ) used for two cohort studies in Japan. DESIGN: Cross-sectional study. SETTING: Two rural towns in the Miyagi Prefecture, in north-eastern Japan. SUBJECTS: Fifty-five men and 58 women. RESULTS: A 40-item FFQ was administered twice, 1 year apart. ...

To report 6 psychometric properties of food behavior checklist (FBC) items and then to use these properties to systematically reduce the number of items on this evaluation tool. Random assignment to the intervention and control groups. Low-income communities. Women (N = 132) from limited-resource families. Reliability, internal consistency, baseline differences ...

Food-frequency questionnaire (FFQ) data should reflect interindividual variation and therefore measure variance in intake among populations. We conducted this analysis to evaluate the relevance of separate portion size questions to the interindividual variation in food intake. The contribution of portion size questions to the variance in food intake was quantified ...

OBJECTIVE: To evaluate the reproducibility and validity of the School-Based Nutrition Monitoring (SBNM) secondary level student questionnaire. DESIGN: Reproducibility was evaluated using a test-retest study design by administering the questionnaire on the same day (morning and afternoon, n=254) and, when appropriate, 9 to 14 days apart (n=259). Validity was assessed ...

OBJECTIVES: To 1) develop a short instrument (Stroke Impact Scale-16 [SIS-16]) to assess physical function in patients with stroke at approximately 1 to 3 months poststroke using items from the composite physical domain of the Stroke Impact Scale (SIS) version 3.0, and 2) compare the SIS-16 and a commonly used ...

This study assessed the validity and reliability of a 12-item soy questionnaire designed for use in cancer prevention research. The questionnaire measures soy intake over the past year. Subjects were 199 healthy 35- to 46-yr-old premenopausal women participating in an ongoing soy intervention study. Soy questionnaire estimates of isoflavone intake ...

We examined the reproducibility of a self-administered semiquantitative food frequency questionnaire (FFQ) used in the 5-year follow-up survey for the Japan Public Health Center-based prospective Study on cancer and cardiovascular diseases (JPHC Study) to estimate nutrient and food intake by using repeated FFQs at a 1-year interval in 101 men ...

Dietitians commonly use 24-hour recall to obtain estimates of the typical food intakes for a population. This study was designed to determine whether using an encoding strategy or support at the time of retrieval improves older adults' 24-hour recall of food items and amounts consumed. The study included 17 older ...

In this section we described the structure of the self-administered semiquantitative food frequency questionnaire used in the 5-year follow-up survey of the JPHC study, the computation algorithms, and the area-based mean intakes of nutrients and food groups in the subjects of the validation study. The FFQ consists of five sections: ...

Screener are useful instruments for categorising individuals according to their nutrient intake. To accurately classify the individuals it is important to correctly analyse the screener. Therefore we compared a simple and a weighed score of a cholesterol and saturated fat (SF) screener with the cholesterol and SF intake, respectively, calculated ...

We describe the development of a data-based food frequency questionnaire (FFQ) to determine the relationship between dietary intakes and diseases among Koreans. A total of 224 individuals were recruited to participate in a three-day dietary record survey. In all, 596 food items were consumed. The intakes of 20 nutrients including ...

We examined the validity and reproducibility of a 44-item food frequency questionnaire used in a baseline survey of the Japan Public Health Center-Based Prospective Study Cohort I conducted in February 1990. Subjects were 94 men and 107 women selected on a voluntary basis among respondents to the baseline survey. Four ...

The objective of this study was to evaluate the validity and reproducibility of a self-administered food frequency questionnaire (FFQ) to estimate nutrient and food intake in the subjects of the Japan Public Health Center-based prospective Study on Cancer and Cardiovascular Diseases (JPHC Study Cohort II). The FFQ was originally developed ...

We examined the validity of a food frequency questionnaire (FFQ) used in the 5-year follow-up survey of the JPHC study for estimation of dietary fiber intake by comparing the intake estimated with dietary records (DR). We developed a food composition table for dietary fiber for the food items included in ...

Background - Advertised meal deals are increasing in size, the average Australian is increasing in size and consumers appear to have lost the ability to judge appropriate food portion size. Objective - To investigate portion size of foods from on campus food outlets, takeaway outlets and supermarkets compared with the ...

The Food Frequency Questionnaire (FFQ) is one of the most commonly used methods in epidemiological studies to assess long-term nutritional exposure. The purpose of this study is to develop a general FFQ for the Israeli population and present the procedures undertaken to select foods to be included in a questionnaire ...

We examined the validity of energy and 16 nutrient intake measurements from a self-administered food frequency questionnaire (FFQ) used in the 5-year follow-up survey of the JPHC study using 28- or 14-day dietary records (DR) as the gold standard. The median (range) correlation coefficients between 16 nutrients measured by FFQ ...

We present here the survey methods and basic results of dietary records which were used as reference values in the present validation study of a self-administered food frequency questionnaire (FFQ) for the 5-year follow-up survey of the JPHC study. A semi-weighed dietary record was kept for four seven consecutive days ...

Two kinds of food frequency questionnaire (FFQ)s were used in the baseline and 5-year follow-up survey of the Japan Public Health Center-based prospective Study on Cancer and Cardiovascular Diseases (JPHC Study Cohort I), a prospective follow-up study with 50,000 population. The former (FFQ00) was a 44-item FFQ without standard portions/units ...

The current trend of changes in nutrient intakes may have some relationship with the increase in the occurrence of degenerative diseases in the Korean population. To date, a calibrated food frequency questionnaire (FFQ) has not been developed that can be further used for large-scale epidemiological research in Koreans aged 40 ...

We examined the validity of food intake measurements from a self-administered food frequency questionnaire (FFQ) used in the 5-year follow-up survey of the JPHC study using 28- or 14-day dietary records (DR) as the gold standard. The median (range) correlation coefficients between a 19-food group measured by FFQ and DR ...

This study was aimed at evaluation of the validity and reliability of an alternative dietary measurement method that assists epidemiologic studies. We validated a handheld personal digital assistant with camera and mobile phone card, called Wellnavi, in which a 1-d weighed diet record was employed as a reference method. Twenty ...

OBJECTIVE: To evaluate the ability of 2 new short assessment instruments and a food frequency questionnaire (FFQ) to measure intake of fruit and vegetables. The "All-Day" screener asks frequency and portion size questions about 9 food items. The "By-Meal" screener is similar, except that it asks about 2 of those ...

OBJECTIVE: To evaluate measurement error structure in dietary assessment instruments and to investigate its implications for nutritional studies, using urinary nitrogen excretion as a reference biomarker for protein intake. DESIGN: The dietary assessment methods included different food-frequency questionnaires (FFQs) and such conventional dietary-report reference instruments as a series of 24-hour ...

OBJECTIVE: Flavonoids are phytochemicals with potentially beneficial biological effects that are poorly characterised in existing tables of food composition. DESIGN: To describe new techniques for analysis, absorption, informatics and dietary assessment that are important in measuring the flavonoid content in foods and in developing a flavonoid food composition database. SETTING: ...

The validity of a food frequency questionnaire (FFQ) was evaluated against four 7-d diet records among 23 men aged 27-70 y. Volunteer women recorded the amounts of all foods and beverages consumed by their husbands or fathers over a period of 7 d in four consecutive seasons in 1997 and ...

OBJECTIVE: To assess the validity of the food-frequency questionnaire used in the European Prospective Investigation of Cancer (EPIC FFQ) for estimating nutrient intake in an adolescent population. DESIGN: Sixty-seven schoolchildren (mean age: 12.3 +/- 0.3 years) were recruited to complete a 7-day weighed dietary record (7-day WDR), the EPIC FFQ ...

OBJECTIVE: To assess the relative validity of the second version of a quantitative food-frequency questionnaire (QFFQ), designed to measure the habitual food and nutrient intake in one season in rural populations in Western Mali, West Africa. DESIGN: The dietary intake during the previous week was assessed with the 164-item QFFQ ...

OBJECTIVE: To describe methodological issues regarding the measurement of food intake of marginal populations in the north-west of Mexico. METHODS: Dietary data from three sources were analysed. The Sonora State Food Basket Study (505 individuals from all ages, both sexes, high, medium and low income, and from urban and rural ...

OBJECTIVE: Increasing recognition of the potential importance of phytochemicals in the aetiology of cancer and heart diseases has highlighted the need for methods to measure individual phytochemical consumption that are sufficiently simple to be used in large epidemiological studies and whose reproducibility and accuracy have been quantified. d-Limonene is a ...

OBJECTIVE: To compare various food-frequency questionnaires (FFQs) used in nutritional studies in China for various purposes. DESIGN: In Study 1, a simplified FFQ with 17 questions on food was used in a large rural study. In Study 2, a questionnaire consisting of 84 questions on food consumption of 16 food ...

Statistical analysis of pooled dietary intake data in multicenter and multiethnic studies is often hampered by lack of comparability due to application of different food frequency questionnaires (FFQs). To remove this deficiency, dietary intake measurements should be standardized. This paper presents a standardization procedure based on nonlinear calibration, which aims ...

OBJECTIVE: The purpose of the study was to assess the validity of a 52-item semi-quantitative food-frequency questionnaire (FFQ) by comparing it with multiple 24-hour dietary recalls. DESIGN: Three non-consecutive 24-hour dietary recalls and one FFQ were administered over a one-month period. SETTING: Four communities of El Progreso, Guatemala. SUBJECTS: Seventy-three ...

OBJECTIVE: Development and validation of a short instrument to assess the dietary intake of heterocyclic aromatic amines (HCA). DESIGN: At first, a longer instrument asking for the consumption of 11 meat and fish items and different preparation methods was developed. The degree of browning of these foods was assessed by ...

Attention coefficient and propagation speed of intercostal tissues were estimated from chest walls removed postmortem (pm) from 15 5.3+/-2.3-day-old, 19 31+/-6-day-old, and 15 61+/-3-day-old crossbred pigs. These ultrasonic propagation properties were determined from measurements through the intercostal tissues, from the surface of the skin to the parietal pleura. The chest ...

OBJECTIVE: To determine flavonoid content of US foods, mean individual intakes, major food sources, and associations with other nutrients. SUBJECTS: US men (n = 37,886) and women (n = 78,886) who completed a semiquantitative food frequency questionnaire in 1990. DESIGN: Men and women completed a questionnaire that listed 132 items, ...

BACKGROUND: Policy and clinical decisions regarding children's nutrition are often based on dietary intake estimates from self-reports. The accuracy of these estimates depends on memory of both the type of food eaten and the amount consumed. Although children's self-reports of food intake are widely used, there is little research on ...

BACKGROUND: Simple screening tools to identify intake of fruit, vegetables and fat are necessary to design effective public health intervention strategies in order to increase intake of fruit and vegetable and to reduce fat intake. METHODS: 108 men recorded their food intake for 14 days and filled in a 27-item ...

There is a very high prevalence of diet related disorders in the British African-Caribbean population but very few studies have determined associations between diet and disease within this community. There are virtually no published data on the frequency of foods consumed by this population or on the usual portion sizes ...

We evaluated the performance of a 22-item food frequency questionnaire (FFQ) administered in 1980-81 to 3,005 members of the Adult Health Study cohort, part of the Life Span Study. The questionnaire was compared with the records of a 24-hour dietary survey that was performed in 1984-85. From the dietary records, ...

OBJECTIVE: To examine the validity and reliability of the 24-item Food Habits Questionnaire (FHQ) in a worksite setting. DESIGN: In a longitudinal design, subjects in a 9-month worksite intervention program completed the FHQ pre- and postintervention. A randomly selected subsample also completed 2 sets of 4-day food records. SETTING: Three ...

OBJECTIVE: The purpose of this review is to provide guidance on the development, validation and use of food-frequency questionnaires (FFQs) for different study designs. It does not include any recommendations about the most appropriate method for dietary assessment (e.g. food-frequency questionnaire versus weighed record). METHODS: A comprehensive search of electronic ...

This study aimed to use a standard questionnaire to obtain a nationally representative sample of opinions on a range of potential food risks. Participants were a national sample of 1182 subjects selected using three different approaches: random and sentinel postal samples and a telephone survey. A modified psychometric questionnaire (the ...